Re: [PATCH] [3/3] PCI segment support

From: Ivan Kokshaysky (
Date: Mon Jun 09 2003 - 06:00:18 EST

On Mon, Jun 09, 2003 at 03:43:04AM -0700, David S. Miller wrote:
> Root buses often do not have the self device, e.g. on alpha.
> How can people make PCI config space accesses to them?

The root level controllers itself are not accessible from
PCI config space (unlike x86 host bridges). They have
dedicated control registers somewhere in the IO space.

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